A few ideas...

Quick Pornstar Idol:

10 female "talents" on hands and knees, heads facing away from camera, in a line-up. Single male talent starts at one end of the line, thrusting one by one, picking the "best feeling" interior. If it isn't acceptable right away, he tells them to bolt. Narrow it down to like 3. Final one gets the shot.

Guess The Star Game:

Same style line-up, but with bags over experienced females' heads. Experienced male talent does his thing, and has to guess who each female is based on feeling.

Comments?

I like the first idea, that would be pretty cool. It would be a blast to be a judge as well. I think there should be a few cocks though, and get a few opinions. The same could be done with the whores heads upside down and the cocks could judge their throats.